Organ valve



Oct. 20,* 1931. L. A. wooDwARD ORGAN VALVE` Filed Feb. 18, 1931 Rdff Y/ M N mm A .M AH .w M E Oct. 20, 1931. L, A. WOQDWARD 1,827,864

ORGAN VALVE Filed Feb. 18, 1931 3 Sheets-Shea?, 2

A TTGRNEY/ Oct. 20, 1931. ,-L. A. wooDwARD GRGAN VALVE Filed Feb. 18, 1951 3 Sheets-Sheet '5 IN V EN TOR.

ATIoRjNEY Patented Oct. 20, 1931 Pari-:NTl oFFlcE I LEWIS A. WOODWARD, F FREDERICK, MARYLAND ORGAN VALVE Application led lFebruary 18, 1931. Serial No. 516,773. l

My invention relates broadly to organs and more articularly to an electro-pneumatic valve ihr organs.

Onefof the objects of my invention is to i provide a construction ofelectro-pneumat1c organ valve which may be readily mounted in an organ chest or removed therefrom for repair or replacement.

Another object of my invention is to prom vide a construction of organ valve which may be installed in an organ chest in close association with adjacent Valves7 the valve of my invention occupying minimum space in the chest. c

1,3-, VStill another object of my invention is' to provide a construction of organ valve whlch may be vinstalled in an organ chest by the drillingfof a single hole in the organ chest to receive an encased solenoid adapted to io closely conform with the shape of the single aperture drilled in the chest.

A further object of my invention is to provide a construction of electro-pneuma ic organ valve wherein the magnetic actuating means is enclosed by a cylindrical casing through which a tubular port extends for the passage of air through the Vvalve for effecting the operation of the organ. l

A still further object of my invention 1s to '30l provide a construction of electro-pneumatic valve for organs wherein a magnetic case encloses the electromagnetic operating structure of the va lve, the casing being coated with maw tcrial of low conductivity which provides in "o effect a winding of one turn short circuited upon itself and disposed in indue ive association with the electromagnetic winding where by the arc at the key contacts may be sub um stantially reduced for preventing injury to the contacts.

`Other and further objects of my invention .reside n in the construction of electro-.pneuma'ic valve as set forth more fully in the sgecilication hereinafter following by reference to the accompanying drawings, wherein:

Figure l is a side elevation of an organ chestrconstructed in accordance with my invention showing arts of the electromagnetit units in section ;y rig. 2 is a fragn'ientary bottom plan view thereof, and showing a schem a-y tic view of the wiring for actuating the electromagnetic units; Fig. 3'is a vertical transverse sectional view yon line 3 3 of Fig; 1 showing the parts in their normal relation; Fig.v 4 is' a fragmentary sectional view of a portion of the chest showing more particularly` the single aperture necessaryor the introduction of the electromagnetic unit; Fig. 5 is a similar view showing the manner of introducing the electromagnetic units; Fig. 6 isI a central vertical longitudinal sectional view on the enlarged scale showing moreipartic# ularly the interior construction of the electromagnetic units; Fig. 7 is a central vertical longitudinal section showing more particularly the soft iron core forming part of the electromagnetic unit and the electro-plating of the same; Fig. 8 is a detailed perspective view of the casing and core of the electromagnetic unit; and Fig. 9 is a central vertical longitudinal section showing a modified form of a portion of the unit.

Heretofore in the artthe installation of electro-pneumatic valves in thechest of an organ has involved considerable labor. The electromagnetic operating means usually employed for organ valves heretofore consisted o'f a horseshoe magnet necessitating the drilling of two holes through the organ chest and then chiselingthe wood between the holes in order to provide an aperture sufliciently large to permit the passage of the horseshoe magnet with the winding carried thereon. The windings of the horseshoe 'magnet terminated in' fine wires which Vwere soldered to pins driven into the interior of the chest. Electrical connection was made tothe pins on the interior of the chest to the key operating circuits. The space available within an organ chest is extremely limited and the work of repairing a detective organ valve is exceedingly tedious as it is necessary to remove the entire wall of the organ chest, drop the wall to a suilicient extent to enable the wire terminals to be unsoldered from the pins on the interior of the chest, and then remove the detective horseshoe niagnet through the drilled and chiseled apertures in the chest. After repair of the horseshoe magnet or the replacement thereof, it is necessary to go through the same process of inserting the magnet through the drilled and chiseled apertures and effect a resoldering ot the ends of the winding with the pins which are driven into the wall of the organ chest.

lVith the organ valve of my invention l eliminate the necessity of drilling two holes through the wall of the organ chest and the necessity of chiseling the material from between the walls by providing a construction of cylindrical electromagnet actuating system for a valve which may he inserted through a. single aperture drilled in the wall of the organ chest. The electromagnetic operating system is encased in a cylinder having a central passage therethrough extending to the operating valve. The passage enables air to be supplied from the chest to the valve operating means which controls the supply of air pressure to the pneumatic means which in turn controls the operation of the pipe organ. The cylindrical casing for 'the organ valve is insertable directly through a'single aperture drilled in the chest, and the leads 'from the electromagnetic. winding housed within the casing extend to terminals carried by the base of the valve exteriorly ot the organ chest. In this way electrical connections inay be readily made with the electromagnetic windings of the valve exteriorly of the chest and without removing the wall of the chest. The arrangement of electromagnetic operating system in the form of a solenoid is such that `greater magnetic pull is obtained on the dise valve of the electromagnetic operating system than has heretofore been obtained with the horseshoe magnet in that the magnetic circuit in my improved construction of valve is completely enclosed, preventing loss of magnetic lux and because ot the fact that the magnetic flux radiates from the center of the circular armature disc which is a spot of high magnetic density to the circumference thereof thereby permeating the entire area of the disc and allowing precision movement ot the valve in a. plane normal to the axis of the solenoid. Heretofore with the horseshoe type of magnet7 there has been a tendency for the magnetic valve to tilt to one side due to the uneven distribution of magnetic flux in the magnetic system. lith the structure of my invention, however, the effect ofthe air passage through the centra-l port in the valve is equalized upon the movable armature member thereby insuring the uniform pull upon the armature. The coating oi highly conductive metal over the surface of the i ing which surrounds the operating magnet provides a shunt path lor current around the winding', preventing hielt back when the 1irey circuit is broken and thereby reducing an action ot the arc on the contacts in the organ.

Referring to the drawings in detail7 reference character 1 designates an organ chest which is supplied with air troni one end thereof as represented at Q. A plurality et operating diaphragme are arranged in staggered relation as 3 and Ll, and actuate the usual co-acting vali shown at 5. Each of th valvesas shown more clearly in Fig. 3 includes an operating diaphragm at 3 controlling a movable rod member G which carries the valve structures T and 8 which may be brought into registry with the ports 9 and 19 respectively tor controlling the pressure to the pneumati control connected with pipe 11. In the position shown, the chest pressure is supplied to the pneumatic control from the chest through the valve scat 10 and port 12 o the pneumatic control 11. In this posiion7 air is supplied from the chest through tl longitudinally extending central port 14 in the core 14 and through the laterally extending port 16 to the outlet port 17 to the port 18 in one wall of the chest to the chamber 19 immediately adjacent the diaphragm 3.

The valve operating mechanism of my invention is shown on an enlarged scale in Fig. (i. The organ valve is mounted within a supporting plate 2() having valve seat 21 dctacliably secured thereto and co-acting with the movable armature Q2 resting loosely there on. mounting Vtor the cylindrical casing which projects from the plate 2O and entirely enclos the electromagnetic operating mechanism. T ie casing 15 is connected to core 1li through an end member 29 as illustrated in Fig. G. That is, the core 14 has an annular recess 24 adjacent the end thereof which receives the circular plate 253 and over which the edge of t-he tubular port 14: is rolled as represented at 25. rllhc plate QB enters an annular groove 2G on the interior of casingr 15 over which the edge of casing 15 is rolled as indicated at 27. In lieu ot the three piece assembly, l may employ a two niece assembly as illustrated in the modilied form shown in Fig. 9 wherein the central longitudinally ei;- tending core 14rlias au integrally connected lia ge 28 on the end thereof which is united with the casing l5 by rolling the end of casing 15 over the edge of the circular plate S28. The casing 15, the'longitudinally ferite ding core 1J: and the end plate 2?; are oit' magnetic niaterial such as soft iron. The core 1l forms one pole ot' the magnetic system and the cas- The supporting plate 2O provides a ing l5 forms the other pole of the magnetic system. Casing 15 is slotted at 15a to enable the ends of the conductor from the electromagnetic winding 30 carried upon the spool 5 31 to be extended to the supporting plate 20 as illustrated. One end of the winding 30 is grounded at 30a to the metallic supporting base 2() so that an intimate electrical connection may be established therewith from the connecting lug illustrated at The other end of the winding 30 extends as shown at 30?) through the pad 33 which is attached to the rear of the supporting plate 2() and termuals at the lug 34 to which connection to the 'keying circuit may be made.k It .will be observed fromFig. 6 that the valve system is entirely removable from the exterior of the chest. That is. it is unnecessary to yremove the wall 35 of the chest in order to withdraw 0 or install a defective electropneumatic valve.

This will be understood more clearly in observing Fig. 4 in which it will be seen that a single aperture 36 is drilled through the wall 35 of the chest through which the cylindrical outer casing 15 of the valve 1s adapted to be inserted. The electricalconnections to the valve terminate exteriorly ofthe organ chest at the lugs 32 and 34 for each valve so that it is unnecessary to open the organ chest to disconnect a defective valve and substitute a new valve. The spool 31 carrying winding 30 fits over the longitudinally extending core 14, the end of the spool terminating in alignment with the end of the same, as is indicated 55 at 14a in Figs. 7 and 9. The end of the core 14 forms a pole 14a which terminates short of the edge 15b of the tubular casing 15. A gasket 37 is secured over the end of the spool 31 to provide a cushioning means for the silencing pad 38 over the endof the electromagnet. In this way the operation of the armature is rendered silent, to avoid interference with the operation of the pipe organ, due to metallic clicking or chattering of valve 22, when actuated. The outer casing 15 and inner core 14 of magnetic material is electrolytically coated with a metallic deposit 39 having high conductivity. The metallic coating provides a path of high conductivity forming in effect a winding of one turn short circuited upon itself in inductive relation to the winding 31 and adapted tovreact upon the magnetic field to eliminate the kick back when the keying circuit is open and reduce the burning of the contacts. The keying circuits have been illustrated diagrammatically in Fig. 2 at 40 independentlv connecting each of i the electro-pneumatic valves with the source 41 for effecting operation of the valves upon the closing of the keys.

In the operation of the electro-pneumatic valve of my invention,the keys 4l) are independently actuated for energizing the individual solenoid windings 30. This results in 55' the attraction ofthe magnetic disc valve 22 by the poles formed by the ends 14a and 15b of the casing, thereby cutting off the pressure from the chest 1 by the closing of arm ature 22 against the end of the longitudinat ly extending port 14. This operation opens the port 18 in the wall of the chest 1 to the atmosphere, relieving' the pressure behind diaphragnr in chamber 19 thus allowing the pressure `in the chest 1 to be exerted against the side of diaphragm 3 for forcing valve structures 8 against the valve seat 10, thus opening the pneumatic control pipe 11 to the atmosphere through port 12. This operation in turn permits the operation of the pneumatic control which governs the operation of a particular organ pipe. Vhen key 40 is released, the solenoid winding 30 is dcenergized whereby disc valve 22 drops by gravity cutting off atmospheric pressure to port 18 and allowing pressure from the chest 1 to build up in port 18 through the inner core 14 in the solenoid, the pressure thereby equalizing on both sides of the diaphragm 3 and allowing valve structures 7 and 8 to move by yvirtue of the pressure in the chest 1 acting against the valve structures 7 and 8. The closing of valve structures 7 and 8 against seat 9 results in the supply of pressure from chest 1 through seat 10, part 12, and pipe 11 to the pneumatic control. As soon as the pressure is made unequal on diaphragm 3 due to the attraction of disc 22 by the solenoid and the opening of chamber 19 to atmospheric pressure, diaphragm 3 operates to shift rod 6 and valve structures 7 and V8, closing l 7 seat 10, and reducing` the pressure in port 12 and pipe 11 to atmospheric pressure, as previously explained.

vBy reason of the staggered arrangement of the diaphragms 3 and 4, the electro-pneumatic valve of my invention, may be set close together as has'been illustrated in Fig. 2 and thus valuable space may be conserved.

I have found the electro-pneumatic valve of my invention extremely practical in its manufacture, installation, and operation, and while I have described my invention in one of its preferred embodiments, I desire that it be understood that modifications may be made and that no limitations upon my invention are intended other than are imposed by the` scope of the appended claims.

lVhat I claim ras new and desire to secure by Letters Patent of the United States is follows:

1. An organ valve comprising a laterally extending supporting base adapted. to be mounted. on the exterior ofan` organ chest,

an electro-pneumatic valve mounted within said supporting base, a. cylindrical `casing projecting rearwardly from said supporting base and lhaving a portfextending axially therethrough, and a solenoid mounted in said casing and concemtrically disposed around ii lid (iii

said port for actuating said electro-pneumatic valve within said supporting base.

2. An organ valve comprising a laterally extending supporting base, a cylindrical casing projecting from said base, said casing comprising a pair ot concentrically disposed tubular members, a solenoid winding disposed between said tubular members, and valve control mechanism mounted within said supporting base under control of said solenoid winding adjacent one end of said tubular members for closing and opening the passage through the inner tubular member.

3. An organ valve comprising a laterally extending base member, valve mechanism within said base member, a cylindrical casing projecting from said base member, a tubular port extending axially through said casing and terminating within said base member, and a solenoid winding disposed between said tubular port and said casing for controlling said valve mechanism and closing and opening the air passage through said axially extending port.

t. An orga-n Valve comprising a. laterally extending base member, valve mechanism disposed within said base member, a cylindrical casing extending normal to said base member, an axially extending port within said cylindrical casing, and a solenoid winding disposed between said axially extending port and said cylindrical casing, said casing,r and axially extending port being formed from magnetic material and providing magnetic poles for effecting the operation of said valve mechanism within said base member for closing and opening the air passage through said axially extending port.

An electro-pneumatic valve comprising a laterally extending base, valve mechanism within said base, a cylindrical casing projecting rearwardly from said base, a solenoid winding disposed within said casing and aligned with the valve mechanism within said base, said casing having a longitudinally extending port formed axially thereof and providing a longitudinally extending path for the passage of air under control of said valve mechanism within said base through said asing 6. An electro-pneumatic valve comprising a laterally extending base, valve mechanism within said base, a cylindrical casing of magnetic material projecting rearwardly from said base, a central axially extending tube of magnetic material projecting through said casing, and a solenoid winding disposed between said casing and said tube, said tube and casing forming opposite magnetic poles 'for effecting the operation of said valve mechanism under control of said solenoid winding for closing and opening the air passage through said axially extending port.

7. An organ valve adapted to be mounted on an organ chest comprising al laterally extending supporting base, valve mechanism within said base, a tubular casing projecting rearwardly from said supporting base and adapted to project through a drilled aperture in the organ chest, an axially extending port in said casing terminating adjacent said valve mechanism, and a solenoid winding within said casing and extending around said axially extending port for controllinfT the operation of said valve mechanism, for correspondingly controlling the passage of air through said port from the organ chest in an axially extending path through casing.

S. An organ valve comprising a laterally extending supporting base, valve mechanism within said base, a tubular casing extending rearwardly from said base, a solenoid winding disposed within said casing for effecting the opera-tionof the valve mechanism within said base, and a terminal member insulatingly carried by said supporting base and connected with said solenoid winding adjacent said supporting base.

9. An organ valve comprisingl a laterally extending supporting base, valve mechanism within said base, a tubular casing ext-ending rearwardly trom said base, and a solenoid winding disposed within said casing for efiiecting the operation of the valve mechanism within said base, one end of said solenoid winding being grounded to said base, and the other end of said solenoid winding extending adjacent said base in insulated relation thereto and a pair of terminals carried exteriorly of said base, one o'f said terminals being grounded to said base, and the other of said terminals being connected with said solenoid winding.

l0. An organ valve comprising a laterally extending supporting base, valve mechanism within said base, a magnetically enclosed casing projecting rearwardly from said base and having a central axially extending port therethrough for the passage of air under control of the valve mechanism within said base, and a solenoid winding mountet within said magnetically enclosed casing for effecting the operation of said valve mechanism for closing and opening the air passage through said axial y extending port.

ll. An organ valve comprising a laterally extending supporting base, valve mechanism within said base, a magnetically enclosed casing projecting rearwardly from said base and having a central longitudinally extending port therethrough ior the passage ot air under control of the valve mechanism within said base, a solenoid winding mounted within said magnetically enclosed casing ttor e'ltecting the operation ot' said valve mechanism, and a metallic shield of higl ly electrical conductivity surrounding said casing forming a closed circuit in inductive relation to said solenoid winding.

12. An organ valve comprising a laterally ,man

extending supporting base, valve mechanism Within said base, a magnetically enclosed casing projecting rearwardly from said base and having a central port extending longitudinally therethrough for the passage of air under control of the Valve mechanism Within said base, a solenoid Winding mounted Within said magnetically enclosed casing for effecting the operation of said valve mechanism, and an electrolytically deposited coating on said magnetic casing, said coating having high electrical conductivity and providing a shunt electricalpath in inductive relation to said solenoid Winding.

In testimony whereof I affix my signature.

LEWIS A. WOODWARD. 

